package chapter1031;

public class TestFrock4 {
    public static void main(String[] args) {
        Frock4 a = new Frock4();
        Frock4 b = new Frock4();
        Frock4 c = new Frock4();

        System.out.println(a.getSerialNumber());
        System.out.println(b.getSerialNumber());
        System.out.println(c.getSerialNumber());

    }
}
